- Rafferty
- Ragner
- Rakov
- Ramey
- Ramond
- Rand
- Randles
- Randolph
- Rapp
- Rappenecker
- Rasberry
- Rassel
- Rauscher
- Ray
- Rayside
- Reams
- Reaves
- Reed
- Reese
- Reeves
- Reich
- Reinert
- Reinhart
- Reitz
- Reneke
- Renner
- Rentz
- Reshard
- Reynierson
- Reynolds
- Rice
- Richardson
- Richter
- Riley
- Ripol
- Rippetoe
- Ritter
- Ritz
- Rivers
- Riviere
- Roberts
- Robinson
- Rock
- Rogers
- Rolle
- Romey
- Roosenraad
- Roque
- Rosalsky
- Rose
- Ross
- Roudels
- Roughton
- Rowan
- Rowe
- Royston
- Rozear
- Rubin
- Ruland
- Rumsey
- Ruppert
- Ruse
- Rusis
- Russ
- Ruth
- Ryerson